arm64: dts: ls1028a-rdb: enable pwm0

Enable pwm0 on ls1028a-rdb board which uses flextimer1.
Signed-off-by: NBiwen Li <biwen.li@nxp.com>
Signed-off-by: NLi Yang <leoyang.li@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts

@@ -286,6 +286,10 @@
 	status = "okay";
 };
 
+&pwm0 {
+	status = "okay";
+};
+
 &sai4 {
 	status = "okay";
 };